diff mbox

[02/12] mtd: nand: davinci: check required ti,davinci-chipselect property

Message ID 4F5844B3A985794BA902E12C070812375F8CEF@DNCE04.ent.ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ivan Khoronzhuk Nov. 11, 2013, 4:53 p.m. UTC
The property "ti,davinci-chipselect" is required. So we have to check
if it is set.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
---
 drivers/mtd/nand/davinci_nand.c |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

--
1.7.9.5

Comments

Santosh Shilimkar Nov. 12, 2013, 3:50 p.m. UTC | #1
On Monday 11 November 2013 11:53 AM, Khoronzhuk, Ivan wrote:
> The property "ti,davinci-chipselect" is required. So we have to check
> if it is set.
> 
> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
> ---
>  drivers/mtd/nand/davinci_nand.c |   10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
> index d87213f..8e1c88e 100644
> --- a/drivers/mtd/nand/davinci_nand.c
> +++ b/drivers/mtd/nand/davinci_nand.c
> @@ -541,10 +541,14 @@ static struct davinci_nand_pdata
>                                 GFP_KERNEL);
>                 pdev->dev.platform_data = pdata;
>                 if (!pdata)
> -                       return NULL;
> +                       return ERR_PTR(-ENOMEM);
> +
This change don't follow commit message.

>                 if (!of_property_read_u32(pdev->dev.of_node,
>                         "ti,davinci-chipselect", &prop))
>                         pdev->id = prop;
> +               else
> +                       return ERR_PTR(-EINVAL);
> +
So the check already exist but the error case wasn't handled.
This should be reflected in change log.

>                 if (!of_property_read_u32(pdev->dev.of_node,
>                         "ti,davinci-mask-ale", &prop))
>                         pdata->mask_ale = prop;
> @@ -598,6 +602,10 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
>         nand_ecc_modes_t                ecc_mode;
> 
>         pdata = nand_davinci_get_pdata(pdev);
> +       if (IS_ERR(pdata)) {
> +               return PTR_ERR(pdata);
> +       }
> +
Again not related to commit log. You might want to split this patch
then.

Regards,
Santosh
Ivan Khoronzhuk Nov. 18, 2013, 6:25 p.m. UTC | #2
On 11/12/2013 05:50 PM, Santosh Shilimkar wrote:
> On Monday 11 November 2013 11:53 AM, Khoronzhuk, Ivan wrote:
>> The property "ti,davinci-chipselect" is required. So we have to check
>> if it is set.
>>
>> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
>> ---
>>   drivers/mtd/nand/davinci_nand.c |   10 +++++++++-
>>   1 file changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
>> index d87213f..8e1c88e 100644
>> --- a/drivers/mtd/nand/davinci_nand.c
>> +++ b/drivers/mtd/nand/davinci_nand.c
>> @@ -541,10 +541,14 @@ static struct davinci_nand_pdata
>>                                  GFP_KERNEL);
>>                  pdev->dev.platform_data = pdata;
>>                  if (!pdata)
>> -                       return NULL;
>> +                       return ERR_PTR(-ENOMEM);
>> +
> This change don't follow commit message.
>

I'll move it to separate patch, that will be first patch

>>                  if (!of_property_read_u32(pdev->dev.of_node,
>>                          "ti,davinci-chipselect", &prop))
>>                          pdev->id = prop;
>> +               else
>> +                       return ERR_PTR(-EINVAL);
>> +
> So the check already exist but the error case wasn't handled.
> This should be reflected in change log.
>

The error will be handled at return by:
	pdata = nand_davinci_get_pdata(pdev);
  	if (IS_ERR(pdata))
		return PTR_ERR(pdata);

or did you mean I should add dev_err().

>>                  if (!of_property_read_u32(pdev->dev.of_node,
>>                          "ti,davinci-mask-ale", &prop))
>>                          pdata->mask_ale = prop;
>> @@ -598,6 +602,10 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
>>          nand_ecc_modes_t                ecc_mode;
>>
>>          pdata = nand_davinci_get_pdata(pdev);
>> +       if (IS_ERR(pdata)) {
>> +               return PTR_ERR(pdata);
>> +       }
>> +
> Again not related to commit log. You might want to split this patch
> then.
>

I'll move it in the same separate patch.

> Regards,
> Santosh
>
diff mbox

Patch

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index d87213f..8e1c88e 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -541,10 +541,14 @@  static struct davinci_nand_pdata
                                GFP_KERNEL);
                pdev->dev.platform_data = pdata;
                if (!pdata)
-                       return NULL;
+                       return ERR_PTR(-ENOMEM);
+
                if (!of_property_read_u32(pdev->dev.of_node,
                        "ti,davinci-chipselect", &prop))
                        pdev->id = prop;
+               else
+                       return ERR_PTR(-EINVAL);
+
                if (!of_property_read_u32(pdev->dev.of_node,
                        "ti,davinci-mask-ale", &prop))
                        pdata->mask_ale = prop;
@@ -598,6 +602,10 @@  static int __init nand_davinci_probe(struct platform_device *pdev)
        nand_ecc_modes_t                ecc_mode;

        pdata = nand_davinci_get_pdata(pdev);
+       if (IS_ERR(pdata)) {
+               return PTR_ERR(pdata);
+       }
+
        /* insist on board-specific configuration */
        if (!pdata)
                return -ENODEV;